KNECHT S 200 S User manual

Includes S 200 T | S 200 BT
Status 11.2021 Version 2.1 | Translation
Operating Instructions
Universal Wet-Sharpening Machine
S 200 S | S 200 BS

3
S 200 S | S 200 BS Universal Wet-Sharpening Machine
Includes S 200 T | S 200 BT Table model
Manufacturer
KNECHT Maschinenbau GmbH
Witschwender Straße 26
88368 Bergatreute
Germany
Phone [phone]
Fax [phone]
[email protected]
www.knecht.eu
Documents for machine operator
Operating Instructions
Date of issue of the operating instructions
November 9, 2021
Copyright
These operating instructions as well as the operating documents remain the copyright property of KNECHT
Maschinenbau GmbH. They are supplied only to customers and operators of our products and belong to
the machine.
Without our express permission, these documents may neither be duplicated nor made accessible to third
parties, in particular competitor companies.
Operating Instructions

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1. Important notes 7
1.1 Preface to the operating instructions 7
1.2 Warnings and symbols in the operating instructions 7
1.3 Warning signs and their meaning 8
1.3.1 Warning and mandatory signs on / in the grinding machine 8
1.3.2 General mandatory signs 8
1.4 Rating plate and machine serial number 9
1.5 Figure and position numbers in the operating instructions 9
2. Safety 10
2.1 Basic safety instructions 10
2.1.1 Observe notes in the operating instructions 10
2.1.2 Obligation on the part of the operator 10
2.1.3 Obligation on the part of the personnel 10
2.1.4 Hazards involved in handling the grinding machine 10
2.1.5 Malfunctions 11
2.2 Intended use 11
2.3 Warranty and liability 11
2.4 Safety regulations 12
2.4.1 Organizational measures 12
2.4.2 Protective equipment 12
2.4.3 Informal safety measures 12
2.4.4 Selection and qualification of personnel 12
2.4.5 Machine control system 13
2.4.6 Safety measures in normal operation 13
2.4.7 Hazards due to electrical power sources 13
2.4.8 Particular hazard areas 13
2.4.9 Servicing (maintenance, repair) and fault rectification 13
2.4.10 Structural alterations to the grinding machine 14
2.4.11 Cleaning the grinding machine 14
2.4.12 Lubricants/ oils and greases 14
2.4.13 Relocation of the grinding machine 14
3. Description 15
3.1 Intended use 15
3.2 Technical specifications 15
3.2.1 General 15
3.2.2 S 200 S | S 200 BS (floor model) 15
3.2.3 S 200 T | S 200 BT (table model) 16
3.3 Functional description 17
3.4 Description of the assemblies 18
3.4.1 Coolant dosing unit for wet-grinding belt 19
Table of Contents

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3.4.2 Control panel 19
3.4.3 HV 207 Swivel arm (optional, S 200 S | S 200 T) 20
3.4.4 HV 203 Universal grinding arm (optional, S 200 S | S 200 T) 20
3.4.5 HV 261 Belt-grinding attachment (optional, all versions) 20
3.4.6 HV 262 Universal belt-grinding unit (optional, all versions) 21
3.4.7 HV 205-1 Circular knife grinding attachment (optional, S 200 S | S 200 T)
for circular knives, 80–250 mm 21
3.4.8 HV 205-2 Circular knife grinding attachment (optional, S 200 S | S 200 T)
for circular knives, 250–470 mm 21
3.4.9 HV 201 Dressing tool (S 200 S | S 200 T) 22
3.4.10 Coolant unit (S 200 S | S 200 BS) 22
3.4.11 EP 205 external coolant unit (optional, S 200 T | S 200 BT) 22
3.5 Functional description of units 23
4. Transport 24
4.1 Transport aids 24
4.2 Transport damage 24
4.3 Transport to another installation site 24
5. Installation 25
5.1 Selection of qualified personnel 25
5.2 Installation site 25
5.3 Supply connections 25
5.4 Settings 25
5.5 Initial start-up of the grinding machine 26
6. Commissioning 27
7. Operation 28
7.1 General grinding fundamentals 28
7.2 Switching on the grinding machine 29
7.3 HV 207 Swivel arm (optional, S 200 S | S 200 T) 29
7.4 HV 261 Belt-grinding unit (optional, all versions) 30
7.5 HV 203 Universal grinding arm (optional S 200 S | S 200 T) 31
7.6 HV 262 Universal belt-grinding unit (optional, all versions) 32
7.7 Deburring cutter knives with the finned brush 33
7.8 Grinding hand knives on the wet-grinding belt 34
7.9 Dressing the grinding wheel (S 200 S | S 200 T) 35
7.10 Adjusting the grinding wheel guard (S 200 S | S 200 T) 36
7.11 Changing the grinding wheel (S 200 S | S 200 T) 36
Table of Contents

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7.12 Changing the wet-grinding belt 37
7.13 Adjusting the belt movement 38
7.14 Changing the finned brush 39
7.15 HV 205-1 Circular knife grinding attachment (optional, S 200 S | S 200 T) 40
7.16 HV 205-2 Circular knife grinding attachment (optional, S 200 S | S 200 T) 41
8. Care and maintenance 42
8.1 Cleaning 42
8.1.1 Lubricant table 42
8.2 Maintenance plan (one-shift operation) 42
9. Disassembly and disposal 43
9.1 Disassembly 43
9.2 Disposal 43
10. Service, spare parts and accessories 44
10.1 Postal address 44
10.2 Service 44
10.3 Spare parts 44
10.4 Accessories 45
10.4.1 Abrasives used, etc. 45
11. Annex 46
11.1 EC Declaration of Conformity 46
Table of Contents

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1.1 Preface to the operating instructions
These operating instructions are intended to make it easy to learn how to use the Universal
Wet-Sharpening Machine, hereafter referred to as the grinding machine, and to properly utilize its
features.
These operating instructions contain important notes on how to operate the grinding machine
safely, properly, and efficiently. Observing these instructions helps to avoid hazards, reduce repair
costs and downtimes, and to increase the reliability and service life of the grinding machine.
The operating instructions must always be stored in the location that the grinding machine is
used.
The operating instructions must be read and applied by every person tasked with working with
the grinding machine, e.g.:
• transport, installation, commissioning
• operation, including error rectification during operation, as well as
• servicing (maintenance, repair).
Recognized technical standards for safe and professional work must be observed in addition to
these operating instructions and the binding accident prevention regulations applicable in the
country of use and at the place of use.
1.2 Warnings and symbols in the operating instructions
The operating instructions use the following symbols/designations that must be followed:
The hazard triangle with the signal word “CAUTION” serves as a work
safety notice for all work for which there is a risk of personal injury or
death.
In these cases, work should be done with special attention and care.
ATTENTION
“ATTENTION” is used to draw attention to particular points in order to
avoid damage to and/or destruction of the grinding machine and its
environment.
NOTE “NOTICE” refers to user tips and especially useful information.
1. Important notes
CAUTION

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1.3 Warning signs and their meaning
1.3.1 Warning and mandatory signs on /in the grinding machine
The following warnings and mandatory signs have been affixed on / in the grinding machine:
CAUTION! DANGEROUS ELECTRICAL VOLTAGE
(warning sign on switch housing)
The grinding machine carries life-threatening voltage when it is
connected to the current supply.
Current-carrying device parts may only be opened by authorized
personnel.
The grinding machine must be separated from the mains supply
before carrying out servicing, maintenance and repair work on it.
CAUTION! RISK OF INJURY FROM ABRASIVE PARTICLES
(mandatory sign on machine front)
Grinding, polishing, deburring and dressing gives rise to grinding
particles which could enter the eyes.
Wearing protective goggles is mandatory when carrying out such
work.
1.3.2 General mandatory signs
The following general mandatory signs must be followed:
CAUTION! RISK OF INJURY FROM KNIFE
Working with the grinding machine involves grinding knives that
could cause serious cut injuries due to their sharpness.
Protective gloves must be worn when clamping and releasing
knives.
Caution when transporting blades. Use the protective equipment
provided by the knife manufacturer. Protective gloves and safety
shoes must be worn.
1. Important notes

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1.4 Rating plate and machine serial number
The rating plate is located on the rear panel of the
machine.
The machine serial number can be found on the
rating plate and on the left side wall underneath
the flap brush.
1.5 Figure and position numbers in the operating instructions
If the text makes a reference to a machine component depicted in a figure, the figure and
position number will be given in parentheses.
Example: (6-2/1) means figure number 6-2, position 1.
Check the direction of rotation of the finned brush.
The direction arrow (6-2/1) indicates the direction of
rotation of the wet-grinding belt and finned brush.
If the finned brush is rotating in the right direction, then
the direction of rotation of the grinding wheel and of the
wet-grinding belt is also correct.
If the finned brush is rotating in the wrong direction, have
the phase reversed by a qualified electrician.
1. Important notes
Figure 1-1 Rating plate
Figure 1-2 Machine serial number
Figure 6-2 Checking the direction of rotation
1

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2.1 Basic safety instructions
2.1.1 Observe notes in the operating instructions
The basic prerequisite for the safe handling and uninterrupted operation of this grinding machine
is knowledge of the basic safety instructions and regulations.
• These operating instructions contain important notes on how to operate the grinding machine
safely.
• All persons carrying out work on the grinding machine must follow these operating instructions,
in particular the safety notices.
• In addition, the rules and regulations regarding accident prevention at the place of use are to be
observed.
2.1.2 Obligation on the part of the operator
The operator is obliged to allow only those persons to work on the grinding machine, who
• are familiar with the occupational safety and accident prevention regulations and have received
instruction in handling the grinding machine,
• have read and understood the operating instructions, in particular the section entitled “Safety”
and the warning notes, and have provided signed confirmation of this.
The safety-awareness of the personnel at work will be monitored at regular intervals.
2.1.3 Obligation on the part of the personnel
All personnel working on the grinding machine shall be obliged, before starting work, to
• observe basic occupational safety and accident prevention regulations,
• read the operating instructions, particularly the section entitled “Safety” and the warning notes,
and provide signed confirmation that they have understood them.
2.1.4 Hazards involved in handling the grinding machine
The grinding machine has been built to the latest technological standards and the recognized
rules of technical safety. In spite of this, its use poses inherent risks which could result in bodily
harm or even death of the user or third persons, or damage to the grinding machine or other
property.
The grinding machine may be used only:
• for its intended purpose
• in faultless condition with regard to safety-related aspects.
2. Safety

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Malfunctions that may impair safety are to be eliminated immediately.
2.1.5 Malfunctions
If safety-relevant malfunctions occur with the grinding machine, or if the processing behavior indi-
cates that such malfunctions may have occurred, the grinding machine must be stopped immedi-
ately and until such time as the malfunction has been found and eliminated.
Allow only authorized trained personnel to eliminate the malfunctions.
2.2 Intended use
The grinding machine can be used universally for all standard cutter knives, as well as circular
knives, hand knives, and other cutting tools.
Except for hand knives (e.g. cutting knives), all cutting tools must be clamped on the correspond-
ing grinding plates. First, check whether the grinding plate matches the knife to be ground. The
knife can only be ground if this is the case.
Any other use is considered to be improper. KNECHT Maschinenbau GmbH is not liable for any
damage arising from this. The user alone bears this risk.
Use as intended includes the observance of all the notes in the operating instructions.
ATTENTION The grinding machine is being used
improperly if, for example:
• cutting tools that cannot be guided by
hand are ground without a grinding plate.
• fixtures are not properly attached.
• knives are sharpened/polished in the op-
posite direction of the cutting edge on the
wet-grinding belt or the finned brush.
2.3 Warranty and liability
Warranty and liability claims in case of personal injury or property damage are excluded if such
damage is attributable to one or more of the following causes:
• improper use of the grinding machine,
• improper transport, commissioning, operation, and maintenance of the grinding machine,
• operating the grinding machine with defective safety devices, or using improperly attached or
malfunctioning safety and protective equipment,
2. Safety

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• failure to observe the instructions with regard to transportation, commissioning, operation,
maintenance and repair of the grinding machine,
• unauthorized structural alterations to the grinding machine,
• unauthorized modification, e.g. of the drive conditions (output and speed),
• failure to monitor machine parts that are subject to wear, and
• use of unapproved replacement and wear parts.
Use only original replacement and wear parts. When using external parts, it cannot be guaranteed
that they are constructed and manufactured to be suitable and safe.
2.4 Safety regulations
2.4.1 Organizational measures
Inspect all available safety devices regularly.
Observe prescribed intervals for recurring maintenance work or as specified in the operating
instructions!
2.4.2 Protective equipment
Before every commissioning of the grinding machine, ensure that all protective equipment is
properly mounted and in functional condition.
Protective equipment may be removed only after the grinding machine has stopped and has
been secured against accidental restart.
When attaching spare parts, the protective equipment must be attached by the operator as
stipulated.
2.4.3 Informal safety measures
The operating instructions must be permanently available at the place of use of the grinding
machine. In addition to the operating instructions, the generally applicable as well as locally
relevant accident prevention regulations must also be made available and observed.
All safety alert symbols and hazard warnings on the grinding machine must be complete and
clearly legible.
2.4.4 Selection and qualification of personnel
Only trained and instructed personnel may work on the grinding machine. Observe the legally
permitted minimum age!
2. Safety

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The responsibilities of personnel with respect to commissioning, operation, maintenance, and
repair must be clearly specified.
Personnel still undergoing training or instruction may only work on the grinding machine under
the permanent supervision of an experienced person!
2.4.5 Machine control system
Only trained and instructed personnel are permitted to switch on and operate the machine.
2.4.6 Safety measures in normal operation
Do not operate the machine in any unsafe manner. Only operate the grinding machine if all the
safety devices are installed and fully functional.
At least once per shift (or per day), check the grinding machine for externally visible damage and
proper functioning of the safety devices.
Immediately report any changes present (including those of the operating behavior) to the respon-
sible office or person. If necessary, immediately shut down the grinding machine and secure it
against restart.
Before you switch on the grinding machine, ensure that no one can be injured by the start-up of
the machine.
In the event of a malfunction, immediately stop the grinding machine and secure it against re-
start. Rectify malfunctions immediately.
2.4.7 Hazards due to electrical power sources
Work on electrical systems or operating materials may only be performed by a qualified
electrician, in accordance with electrical regulations.
Defects, such as damaged cables, cable connections, etc. must be immediately rectified by
an authorized specialist.
2.4.8 Particular hazard areas
Hazard in the area of the grinding wheel, wet-grinding belt and finned brush: objects, e.g. cloth-
ing, fingers and hair, can be pinched and drawn in. Wear suitable personal protective equipment.
2.4.9 Servicing (maintenance, repair) and fault rectification
Maintenance work is to be carried out on schedule by trained personnel. Inform operating
personnel before beginning repair work. Designate a supervisor responsible for this.
For all service work, the grinding machine is to be disconnected from the current supply and
secured against accidental restart.
2. Safety

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Remove power plug. Cordon off the repair area as far as it is required.
After completing maintenance work and rectifying any faults, install all safety devices
and verify that they are fully functional.
2.4.10 Structural alterations to the grinding machine
Alterations to or retrofits or rebuilds of the grinding machine are not allowed without the permis-
sion of the manufacturer. This also applies for installation and configuration of the safety devices.
Any conversion work requires the written permission from KNECHT Maschinenbau GmbH.
Immediately replace any machine parts that are not in a serviceable state.
Use only original replacement and wear parts. When using external parts, it cannot be guaranteed
that they are constructed and manufactured to be suitable and safe.
2.4.11 Cleaning the grinding machine
Properly handle any cleaning agents and materials used and dispose of them in an environmental-
ly-friendly manner.
Dispose of the wear parts and replacement parts in a safe and environmentally-friendly manner.
2.4.12 Lubricants/oils and greases
When using oils and greases, follow the safety regulations applicable to the product. Comply with
the special regulations for the foodstuffs sector.
2.4.13 Relocation of the grinding machine
Disconnect the grinding machine from any external current supply, even if adjusting its position
slightly. Before restarting the grinding machine, properly connect it to the power supply.
When loading or unloading, only use suspension devices and load suspension devices with
sufficient load-bearing capacity. Designate suitable lifting devices for the lifting process.
Ensure that only persons authorized to carry out this work are located where the machine is
unloaded and installed.
Only lift the grinding machine correctly with a suspension device in accordance with the operating
instructions. Use only a suitable transport vehicle with sufficient carrying capacity. Secure loads
safely. Use suitable attachment points. When recommissioning, do so only in accordance with the
operating instructions.
2. Safety

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3. Description
3.1 Intended use
The S 200 Universal Wet-Sharpening Machine is meant for grinding, deburring and polishing all
commonly used cutter knives as well as circular knives, hand knives and other cutting tools.
3.2 Technical specifications
3.2.1 General
Current supply* ������������������������������������������������������������ 3x 400 V
Mains frequency* �������������������������������������������������������������� 50 Hz
Output* ������������������������������������������������������������������� 1.15 kW
Power consumption* �������������������������������������������������������� 1.61 kW
Energy consumption* ��������������������������������������������������������� 2.79 A
Back-up fuse ������������������������������������������������������������������� 16 A
Measured A-weighted emission sound pressure level ������������������������������ 78 dB (A)
at workplace LpA**
Speed of wet-grinding belt/finned brush �������������������������������������� 1700 rpm
Speed of grinding wheel (optional) �������������������������������������������� 420 rpm
*) This information may change depending on the electrical current supply.
**) Two-digit sound emission value according to EN ISO 4871 (measurement uncertainty KpA. 3 dB (A)).
Emission sound pressure level according to EN ISO 11201.
A K24 cutter knife from KNECHT Maschinenbau GmbH was ground.
3.2.2 S 200 S | S 200 BS (floor model)
Height (version with grinding wheel) ����������������������������������� approx. 1300 mm
Width ��������������������������������������������������������������� approx. 900 mm
Depth ������������������������������������������������������������� approx. 1100 mm
Space requirement (W x D) �������������������������������������������� 1500 x 1500 mm
Weight ����������������������������������������������������������������� max. 160 kg

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3. Description
900 mm1100 mm
1300 mm
Figure 3-1 Dimensions in mm (S 200 S floor model)
CoGCoG
3.2.3 S 200 T | S 200 BT (table model)
Height (version with grinding wheel) ������������������������������������� approx. 600 mm
Width ��������������������������������������������������������������� approx. 900 mm
Depth ������������������������������������������������������������� approx. 1000 mm
Space requirement (W x D) �������������������������������������������� 1500 x 1500 mm
Weight ����������������������������������������������������������������� max. 104 kg

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3. Description
3.3 Functional description
The Universal Wet-Sharpening Machine can be used to grind, deburr and polish linear, sickle-
shaped and circular knives.
All knives other than hand knives must be clamped onto grinding plates and must be ground on
the grinding wheel as well as the wet-grinding belt with corresponding fixtures.
The grinding angle on the grinding wheel can be steplessly adjusted. The grinding angle on the
wet-grinding belt is adjusted with different spacer discs.
Knives can be deburred and polished on the finned brushes without the use of fixtures.
Figure 3-2 Dimensions in mm (S 200 S table model)
CoG CoG
1000 mm
600 mm
900 mm

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3. Description
3.4 Description of the assemblies
The Universal Wet-Sharpening Machine is available in different versions:
• S 200 S (floor model with grinding wheel)
• S 200 BS (floor model without grinding wheel)
• S 200 T (table model with grinding wheel)
• S 200 BT (table model without grinding wheel)
KNECHT Maschinenbau GmbH also offers useful optional attachments that can be used as
needed. These fixtures are explained on the following pages.
1 Finned brush
2 Control panel
3 HV 201 Dressing tool for grinding wheel (chapter 3.4.9)
4 HV 203 Universal grinding arm (chapter 3.4.4)
Figure 3-3 General view of grinding machine (S 200 S floor model | HV 203 | HV 262)
9
5
4
7
8
6
1
2
3

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Figure 3-4 Coolant dosing unit for wet-grind-
ing belt
1
2
Figure 3-5 Control panel
1 2
5 Grinding wheel
6 Wet-grinding belt
7 HV 262 Universal belt-grinding unit (chapter 3.4.6)
8 Water tank (floor model)
9 Machine feet
3.4.1 Coolant dosing unit for wet-grinding belt
1 Coolant dosing unit for wet-grinding belt
2 Mount for HV 201 Dressing tool
3.4.2 Control panel
1 Coolant pump ON/OFF
2 Grinding motor ON/OFF
3. Description

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3. Description
3.4.3 HV 207 Swivel arm (optional, S 200 S | S 200 T)
1 Hand wheel to set grinding angle
2 Swivel arm
3.4.4 HV 203 Universal grinding arm (optional, S 200 S | S 200 T)
1 Hand wheel to set grinding angle
2 SP 107 grinding plate
3 Grinding lever
4 Universal grinding arm
5 Grinding wheel guard
3.4.5 HV 261 Belt-grinding attachment (optional, all versions)
1 Grinding lever
2 Function disc
3 Locking lever
4 Hand wheel for feeding the belt-grinding
attachment
5 Star handle
Figure 3-6 HV 207 Swivel arm
2
1
Figure 3-7 HV 203 Universal grinding arm
4
2
5
1
3
Figure 3-8 HV 261 Belt-grinding attachment
3
4
5
1
2

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3.4.6 HV 262 Universal belt-grinding unit (optional, all versions)
1 Grinding lever
2 Function disc
3 Locking lever
4 Hand wheel for feeding the
Universal belt-grinding unit
5 Star handle
3.4.7 HV 205-1 Circular knife grinding attachment (optional, S 200 S | S 200 T)
for circular knives, 80– 250 mm
1 Circular knife holding fixture
3.4.8 HV 205-2 Circular knife grinding attachment (optional, S 200 S | S 200 T)
for circular knives, 250– 470 mm
1 Blade guard
2 Deburring unit
3. Description
Figure 3-9 HV 262 Universal belt-grinding unit
Figure 3-10 HV 205-1 Circular knife grinding
attachment
Figure 3-11 HV 205-2 Circular knife grinding
attachment
1
1
1 2
2
3
4
5